| Source: | The Scots Peerage Founded on Wood's Edition of Sir Robert Douglas's Peerage of Scotland Containing an Historical and Genealogical Account of the Nobility of that Kingdom, Volume II |
| Page: | Caithness, p. 319, XVIII Magnus |
| Citation: | |
| Certainty: | probably |
| Notes: |
| 1 | Catharina (-) |
| 2 | Magnus of Orkney (-before 1329, perhaps before 1321), Earl of Orkney and Caithness, parents: John of Orkney |